180-degree wonderful sea view, the well-designed and improved HJKB mirror, giving you the best distortion-free visibility and maximum visibility

Respiratory system, isolate exhalation and inhalation, the inhaled air enters from the double breathing tube, and the exhaled carbon dioxide and the remaining oxygen not inhaled into the human body flow out from the outside of the mask respectively, thus sequestering the carbon dioxide from entering the human body and leading to life danger and other accidents

Circulating natural breathing, breathe through your nose or mouth in the water

Leakproof, the rubber liner is durable and can form a comfortable waterproof seal without water leakage. The three-way waterproof mechanism makes it safer to wear

100 percent anti-fogging, newly designed antifogging film for snorkeling mask: it can achieve antifogging effect up to 15,000 hours

The adjustable double elastic comfort belt system ensures that you can enjoy snorkeling for hours on end while still having the best fit and comfort